You cannot, but you don't have to mind it as Windows 8 automatically comes up if you don't choose Windows 7 in 30 secs in start up. It's useful cause you can always come back to it.
connect your PC to the internet so that windows 7 can update
Windows Update.
Via Windows update
Windows 8.1 can be downloaded and installed on a Windows 7 PC, but Windows 8.1 is not an update it is a new operating system. This new operating system can be bought from Microsoft for $119.99.
It can be regarded as both. It is an update on Windows 8.0 and could be seen as an upgrade on Windows 7 or older systems.
yes!
If you have windows 7 you can upgrade to it. If you have windows XP you will need to do a complete install.
it comes automatically as an update in windows 7 if it is available. Use windows update to install it automatically
can but must be update windows 7 first
the windows anytime upgrade tool
You can assume the POST (Power-On Self-Test) was successful.
Ultimate and Enterprise